Do as a c++ code programing please do problems number 2, 3, 4 along with output picture please thanks

Problem 2: . Below is a program written in order to compute something trace the program for the following sequence of inputs C,'a a', 'a', 'A', 'A', 'b', 'a', 0. In one sentence, discover what does the program do? #include using namespace std int mainO Char Current, Previous; Int Count- 0; I . cout > Current; 3. Previous Current 4. hile (Current0) cout> Current; if (Current Previous) quit): " Count = Count +1 ; 10 Previous = Current; 1 cout